"I arrived at the office on Tuesday morning to see that an email had been received overnight from Andrew Mills, the General Manager of Charlton Athletic - Andrew is a former Players' Agent," Hibs Chairman Rob Petrie told the official Hibernian website.
"Andrew had called a number of weeks ago expressing interest in two of our players but made no offer at that time either over the phone or by letter.
"The email from Andrew contained an unsigned offer of £3m for the transfer of both Scott Brown and Kevin Thomson subject to certain conditions. I sent an email back to Charlton Athletic rejecting their offer at 9.17am yesterday morning.
"Despite the offer having been rejected, Charlton Athletic and their contacts chose to make the matter public for their own purposes.
"Contrary to all the media speculation in recent weeks, this is the only offer we have received for either player from any club."